Where does “دیوار” come from?

دیوار (Classical Persian) comes from Middle Persian dywʾl, from Old Persian *-wāra.

Ancestry of “دیوار”, step by step

Step	Language	Word	Meaning
1	Middle Persian	dywʾl	wall
2	Old Persian	*-wāra	—

دیوار — Etymology, Origin & Word History | Etymology Explorer